Denver Jordan Simmons led investigators to two dark and remote spots early Thursday, where they found what they say they think are the remains of a Round O woman and her 13-year-old son.

Authorities said that, hours after he was charged with two counts of murder Wednesday night, Simmons admitted he fatally shot Sheila Faye Dodd and her son William last week.

Shortly after midnight Wednesday, he led investigators to two spots about four miles apart where he allegedly dumped the remains after shooting the pair at their Round O home.

Coroner Richard Harvey said he likely will have to use DNA testing to confirm their identities. Officials said it appears that Simmons, 25, tried to burn the bodies.

Magistrate Keisha Gadsden denied Simmons bail and appointed a public defender for him during an arraignment hearing Thursday night.

Simmons politely answered Gadsden's questions about his finances while Sheila Dodd's mother and other family members sat less than 10 feet away, quietly grasping one another's hands.

Simmons told Gadsden that he has a 5-year-old son he does not support, and last held a job three weeks ago.

Authorities say Simmons shot and killed Dodd and her son May 1 and then fled to the Tennessee-Georgia border in her car. He checked himself into a Chattanooga psychiatric hospital for about five days.

The FBI apprehended Simmons after he told his mother and sisters he shot the Dodds, according to warrants.

Investigators said Simmons started talking soon after he returned from Tennessee. "He gave us a good idea of where they were," Sheriff George Malone said.

Simmons had told deputies that he put one of the bodies in a trash bag and the other in a cooler. Just after midnight they drove him to the first site on Merrick Road, a paved road just outside Round O, off U.S. Highway 17A.

While Simmons remained in the patrol car, investigators walked about 50 yards off the road and found the trash bag containing remains.

Officials then took him to the second site, a grassy road just off Round O Road, where they found the remains but no cooler.

Colleton County officials had searched about 5,000 acres of farmland surrounding the Dodd home for several days, until Simmons' arrest.